crystalline silica

基本解释

Brief or casual exposure to low levels of crystalline silica dust are said to not produce clinically significant lung disease.
短暂或偶然暴露水平较低的结晶矽尘表示，不会产生临床显着的肺部疾病。
A light gray volcanic rock containing a mixture of plagioclase and other crystalline minerals in glassy silica, similar in appearance to rhyolite.
一种浅灰色的火山岩，包含斜长石与其它呈光滑硅土状的结晶矿物，在外表上与流纹岩相似。
The mineral crystalline morphology of foundry natural silica sands has been investigated, which can be divided into two groups:single crystal and polycrystalline gather.
考查了铸造用天然硅砂的矿物晶体形态，可将其大致分为单晶体和多晶集合体两类。